Shuttle-threading device.



J. B. MASTERS. SHUTTLE THREADING DEVICE.

APPLIGATION FILED 11113.31, 1913.

Patented NOV. 10, 1914 THE MORRIS PETERS CO., PHOTO-LITHD.. wAsHlNGroN, D. c.

JOI-IN E..MASTERS, 0F FRAMINGHAM,`1VIASSACIIUSETTS.

Specification of Letters Patent.

' Patented Nov. 1o,- i914.

. Application led March 31, 1913. Serial No. 757,727.

ysaid shuttle therethrough.

The object of the invention is, therefore, to provide a simple and eiiicient substitute for the above method which may be operated `by placing the shuttle in contact with certain instrumentalities which are rendered eiective by a sudden pressure on said shuttle toward said eye to create a current of air through said eye and thereby suck the free end of the thread carried by said bobbinthrough said eye.

' H'Ilhe object of the invention is further to provide a suitable nozzle by which connection may be made between the eye of the shuttle and said instrumentalities by simply pressing said shuttle eye thereagainst.

The object of the'invention is still further to provide means for properly positioning the shuttle relatively to said nozzle.

The invention consists Vin the combination and arrangement yof parts wherebyk the above objects and certain other objects hereinafter 'appearing are attained, as set forth in the following specification and particularly pointed out in the claims.

Referring to the drawings: Figure 1 is a plan view of a device embodying my invention with a portion of a shuttle shown in its 1 operative relation thereto. Fig. 2 is a right hand side elevation of the device illustrated in Fig. 1. Fig. 3 is a sectional elevation taken on line 3-3 of F ig.y 1 andl viewed in the direction of the arrows on said line.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, 4 is a shuttle of the well known type used in connection with looms and comprisinga'bobbin 5. In the type of bobbin illustrated the thread is adapted to be unwound from the end 6 of said bobbin land led through a slot 7 arranged longitudinally of the shuttle 1 and into a recess 8 eX-` tending vertically from the .upper side of said shuttle and provided at its lower end with a porcelain bushing 9. A second porcelain bushing 10 is inserted in said shuttle from one side thereof and terminates adj acent to the lower end of the bushing 9, said bushings 9 and 10 constituting a continuous passage from the interior of said shuttle to the side thereof'and forming an eye 11, one portion of which is arranged at right angles to the other and therefore making it `difficult to thread the shuttle.

Agroove 12eXtends longitudinally of the shuttle i at the side from which the bushing 10 is inserted, said groove being in alinement with the outer end of saidbushing and` constituting va thread groove to permit-l the thread-to extend lengthwise of the shuttle without being injured by the movement of said shuttle across the loom, these features being old and well known to those skilled in the art.

The well known method of threading shuttles of thisnature is to place the mouth over the outer end of the bushing 10 and,

yafterl laying the-free rend of the thread across the recess 8, to suck said end through said bushings 9 and 10.

In the device herein yshown mechanical instrumentalities are provided for sucking the end of the thread through the'eye 11,

these instrumentalities preferably comprising two oppositely disposed telescoping tubes 13 and 1-1. The tube 13 is provided with supports 15 by which said tube may be secured to a wall or a table or to any other" convenient place to prevent movement thereof. This tube is open at 16 and is adapted to receive the tube 121 and permit a-telesoopic movement of said tube lf-irelatively to the tube 13, a packing ring` 17 being provided to prevent the escape of air through said tubes. The outer end 18 of the tube 14; is preferably closed by a screw-threaded cap 19, while the opposite end 20 of said tube ltis open. l

The cap 19 vis provided with lugs 21 which project laterally from vopposite sides thereof and have rods 22 secured thereto outside of the tube 13. These rods are arranged to slidably engage a second pair of lugs 23 whichl are formed onv the supports 15 t0 prevent the tube'14 from rotating relatively `tosaid tube 13. Springs 24 are arranged to encircle said rods. and engage at one of ends engage collars 25 secured to the outer free ends of the rods 22. The cap 19 is further provided with a hollow stem 26, the interior thereof communicating with the interior of the tubes 13 and 14. This stem preferably extends upwardly and is adapted to support a cushion 27 which is preferably formed of elastic material and is secured to the end of said stem against a shoulder 23 by a screw 29, which not only serves to retain said cushion in position on said stem, but also constitutes a closure for the stem 26 which may be removed to permit said stem to be cleaned. A tongue 3() is formed on said cushion extending transversely thereof and substantially lits the groove 12 in the shuttle 4. Said cushion is also provided with an opening 31 which is of a sufficient size to inclose the eye 11 of said shuttle. A passage 32 connects said opening with the passage 33 extending through the stem 26 and into the chamber 34 within the tubes 13 and 14. The stem 26 constitutes a support for a rod 35 which extends laterally therefrom and upon which is mounted an adjustable gage 36, said gage being secured in the desired posi-tion on said rod by a set-screw 37. The gage 36 extends upwardly from said rod 35 and is provided adjacent its upper end with a recess 38 which is adapted to receive the metal end 39 of the shuttle 4 and position said shuttle longitudinally thereof relatively to the cushion 27.

To facilitate the positioning of the shuttle 4 vertically relatively to the cushion 27, a gage, preferably consisting of a rod 40, upon which the shuttle is adapted to rest, is adjustably mounted in a lug 4l formed upon said stem 26. The end 43 of the rod 40 is bent to extend substantially at right angles to the body portion of said rod and is adapted to pass through a vertically disposed hole 44 in the lug 41, said rod being positioned relatively to said lug by a. set screw 42.

The operation of the device hereinbefore specifically described is as follows: The shuttle end 39 is placed in the recess 38, with the under side of said shuttle in contact with the rod 40, said rod and the gage 36, comprising the recessv 38, being arranged at the proper distances from the cushion 27 to cause the eye 11 of the shuttle, when said shuttle has been placed in contact with said gages, to be inclosed by the tongue 30 of said cushion and securely seal said eye. As pressure is applied to the shuttle 4 in the direction of the arrow a, the tube 14, which constitutes a piston, will be moved in the direction of said arrow relatively to the 'tube 13. As the opening 31 constitutes the only opening into the chamber 34 and as this opening is covered by the shuttle, the sudden movement of said tube 14 will form a partial vacuum within the chamber 34 and thereby create a suction through the eye 11 and passage 33 into said chamber and suck the end of the thread Z), which has previ- Ously been laid above the bushing 9, through said eye and partly into the passage 33 and upon removing said shuttle from the nozzle 27 the end of said thread will extend suliiciently beyond the eye 11 to permit the operator to grasp the same and pull oli' enough thread to start said shuttle into the loom. Upon removing the shuttle 4 from the nozzle 27 the springs 24, which were compressed during the movement of the tube 14 in the direction of the arrow a, will cause said tube to return to its normal position within the tube 13, as illustrated in F ig. 3, and leave the device in readiness for a successive operation.

Having thus described my invention, what 1 claim and desire by Letters Patent to secure is:

1. A shuttle threading device having, in combination, two oppositely disposed open ended tubes telescopically arranged relatively to each other, a support on one of said tubes provided with a passage communicating with the interior of said tubes, and means on said support adapted to inclose the eye of a shuttle and to connect said eye with the passage in said support.

2. A shuttle threading device having, in combination, a tube provided with an opening at one end, means to support said tube, i

a second tube open at one end and adapted to telescope said first named tube, and a nozzle carried by said telescoping tube, provided with a passage communicating with the interior of said tubes adapted to inclose the outer end of the eye of a shuttle.

3. A shuttle threading device having, in combination, a tube provided with an opening at one end, means to support said tube, a second tube open at one end and adapted to telescope said iirst named tube, a nozzle carried by said telescoping tube, provided with a passage communicating with the interior of said tubes and adapted to inclose the outer end of the eye of a shuttle, and means to prevent the rotation of said telescoping tube relatively to said other tube.

4. A shuttle threading device having, in combination, a tube provided with an opening at one end, means to support said tube, a second tube open at one end and adapted to telescope said first named tube, a nozzle carried by said telescoping tube, provided with a passage communicating with the interior of said tubes and adapted to inclose the outer end of the eye of a shuttle, andv means adapted to normally yieldingly retain said tubes in their collapsed telescopic relation to each other.

5. A shuttle threading device having, in combination, a tube provided with an opening at one end, a second tube open at one end and adapted to telescope said rst named tube, a packing ring circumferentially disposed between said first and second named tubes, adjacent the inner end of said second named tube, and a nozzle carried by one of said tubes, provided with a passage communicating with the interior of said tubes and adapted to t lthe eye of a shuttle.

6. A shuttle threading device having, in combination, air suction creating instrumentalities, a hollow stem connected with said instrumentalities, a screw adapted to close lthe end of said stem, and a cushion of 15 I said eye and communicating with the in- 20l terior of said stem.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOHN E. MASTERS.

Witnesses:

CHARLES S. GooDING, SYDNEY E. TAFT.

Copies of this patent may be obtained for ve cents each, by addressing the f Commissionerof Patents, i

Washington, D. G. 

